Pith. sign in

REVIEW 2 cited by

Measurement of the CP-Violating Asymmetry Amplitude sin2beta

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv hep-ex/0207042 v2 pith:VRXMCQGA submitted 2002-07-17 hep-ex

B. Aubert , et al. (BABAR Collaboration) This is my paper · ORCID
classification hep-ex
keywords cp-violatingmesonsin2betaamplitudeasymmetrydecayseventslambda
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
read the original abstract

We present results on time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 88 million Y(4S) --> B Bbar decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We study events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the other B meson is determined to be either a B0 or B0bar from its decay products. The amplitude of the CP-violating asymmetry, which in the Standard Model is proportional to sin2beta, is derived from the decay-time distributions in such events. We measure sin2beta = 0.741 +/- 0.067 (stat) +/- 0.034 (syst) and |lambda| = 0.948 +/- 0.051 (stat) +/- 0.030 (syst). The magnitude of lambda is consistent with unity, in agreement with the Standard Model expectation of no direct CP violation in these modes.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Measurement of the CP asymmetry in $D^+ \to \pi^+ \pi^0$ decays at Belle II

    hep-ex 2025-06 accept novelty 5.0 of 10

    The new world-best measurement of the CP asymmetry in D+ -> pi+ pi0 decays is (-1.8 +/- 0.9 +/- 0.1)%, consistent with zero and with the Standard Model.

  2. The Muon and Tau Electric Dipole Moments in the B-L Supersymmetric Standard Model

    hep-ph 2026-06 unverdicted novelty 4.0 of 10

    In the B-LSSM the traditional mu-term dominates d_mu and d_tau while B-LSSM-specific CPV parameters also contribute, placing d_mu inside projected Phase-II sensitivity over substantial parameter space and allowing |d_...

Pith tools